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498d31e9f0
This really just generalizes Eshell's previous support for iterative evaluation of a single current command to a list of multiple commands, of which at most one can be in the foreground (bug#66066). * lisp/eshell/esh-cmd.el (eshell-last-async-procs) (eshell-current-command): Make obsolete in favor of... (eshell-foreground-command): ... this (eshell-background-commands): New variable. (eshell-interactive-process-p): Make obsolete. (eshell-head-process, eshell-tail-process): Use 'eshell-foreground-command'. (eshell-cmd-initialize): Initialize new variables. (eshell-add-command, eshell-remove-command) (eshell-commands-for-process): New functions. (eshell-parse-command): Make 'eshell-do-subjob' the outermost call. (eshell-do-subjob): Call 'eshell-resume-eval' to split this command off from its parent forms. (eshell-eval-command): Use 'eshell-add-command'. (eshell-resume-command): Use 'eshell-commands-for-process'. (eshell-resume-eval): Take a COMMAND argument. Return ':eshell-background' form for deferred background commands. (eshell-do-eval): Remove check for 'eshell-current-subjob-p'. This is handled differently now. * lisp/eshell/eshell.el (eshell-command): Wait for all processes to exit when running synchronously. * lisp/eshell/esh-mode.el (eshell-intercept-commands) (eshell-watch-for-password-prompt): * lisp/eshell/em-cmpl.el (eshell-complete-parse-arguments): * lisp/eshell/em-smart.el (eshell-smart-display-move): Use 'eshell-foreground-command'. * test/lisp/eshell/esh-cmd-tests.el (esh-cmd-test/background/simple-command) (esh-cmd-test/background/subcommand): New tests. (esh-cmd-test/throw): Use 'eshell-foreground-command'. * test/lisp/eshell/eshell-tests.el (eshell-test/queue-input): Use 'eshell-foreground-command'. * test/lisp/eshell/em-script-tests.el (em-script-test/source-script/background): Make the test script more complex. * test/lisp/eshell/eshell-tests.el (eshell-test/eshell-command/pipeline-wait): New test. * doc/misc/eshell.texi (Bugs and ideas): Remove implemented feature.
486 lines
18 KiB
EmacsLisp
486 lines
18 KiB
EmacsLisp
;;; esh-cmd-tests.el --- esh-cmd test suite -*- lexical-binding:t -*-
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;; Copyright (C) 2022-2023 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Tests for Eshell's command invocation.
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;;; Code:
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(require 'ert)
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(require 'esh-mode)
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(require 'eshell)
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(require 'eshell-tests-helpers
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(expand-file-name "eshell-tests-helpers"
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(file-name-directory (or load-file-name
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default-directory))))
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(defvar eshell-test-value nil)
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;;; Tests:
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;; Command invocation
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(ert-deftest esh-cmd-test/simple-command-result ()
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"Test invocation with a simple command."
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(eshell-command-result-equal "+ 1 2" 3))
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(ert-deftest esh-cmd-test/lisp-command ()
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"Test invocation with an elisp command."
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(eshell-command-result-equal "(+ 1 2)" 3))
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(ert-deftest esh-cmd-test/lisp-command-with-quote ()
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"Test invocation with an elisp command containing a quote."
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(eshell-command-result-equal "(eq 'foo nil)" nil))
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(ert-deftest esh-cmd-test/lisp-command-args ()
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"Test invocation with elisp and trailing args.
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Test that trailing arguments outside the S-expression are
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ignored. e.g. \"(+ 1 2) 3\" => 3"
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(eshell-command-result-equal "(+ 1 2) 3" 3))
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(ert-deftest esh-cmd-test/subcommand ()
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"Test invocation with a simple subcommand."
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(eshell-command-result-equal "{+ 1 2}" 3))
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(ert-deftest esh-cmd-test/subcommand-args ()
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"Test invocation with a subcommand and trailing args.
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Test that trailing arguments outside the subcommand are ignored.
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e.g. \"{+ 1 2} 3\" => 3"
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(eshell-command-result-equal "{+ 1 2} 3" 3))
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(ert-deftest esh-cmd-test/subcommand-lisp ()
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"Test invocation with an elisp subcommand and trailing args.
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Test that trailing arguments outside the subcommand are ignored.
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e.g. \"{(+ 1 2)} 3\" => 3"
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(eshell-command-result-equal "{(+ 1 2)} 3" 3))
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(ert-deftest esh-cmd-test/subcommand-shadow-value ()
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"Test that the variable `value' isn't shadowed inside subcommands."
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(with-temp-eshell
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(with-no-warnings (setq-local value "hello"))
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(eshell-match-command-output "echo ${echo $value}"
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"hello\n")))
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(ert-deftest esh-cmd-test/skip-leading-nils ()
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"Test that Eshell skips leading nil arguments for named commands."
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(eshell-command-result-equal "$eshell-test-value echo hello" "hello")
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(eshell-command-result-equal
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"$eshell-test-value $eshell-test-value echo hello" "hello"))
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(ert-deftest esh-cmd-test/let-rebinds-after-defer ()
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"Test that let-bound values are properly updated after `eshell-defer'.
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When inside a `let' block in an Eshell command form, we need to
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ensure that deferred commands update any let-bound variables so
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they have the correct values when resuming evaluation. See
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bug#59469."
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(skip-unless (executable-find "echo"))
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(with-temp-eshell
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(eshell-match-command-output
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(concat "{"
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" export LOCAL=value; "
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" echo \"$LOCAL\"; "
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" *echo external; " ; This will throw `eshell-defer'.
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" echo \"$LOCAL\"; "
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"}")
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"value\nexternal\nvalue\n")))
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;; Background command invocation
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(ert-deftest esh-cmd-test/background/simple-command ()
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"Test invocation with a simple background command."
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(skip-unless (executable-find "echo"))
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(eshell-with-temp-buffer bufname ""
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(with-temp-eshell
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(eshell-match-command-output
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(format "*echo hi > #<%s> &" bufname)
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(rx "[echo" (? ".exe") "] " (+ digit) "\n"))
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(eshell-wait-for-subprocess t))
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(should (equal (buffer-string) "hi\n"))))
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(ert-deftest esh-cmd-test/background/subcommand ()
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"Test invocation with a background command containing subcommands."
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(skip-unless (and (executable-find "echo")
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(executable-find "rev")))
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(eshell-with-temp-buffer bufname ""
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(with-temp-eshell
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(eshell-match-command-output
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(format "*echo ${*echo hello | rev} > #<%s> &" bufname)
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(rx "[echo" (? ".exe") "] " (+ digit) "\n"))
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(eshell-wait-for-subprocess t))
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(should (equal (buffer-string) "olleh\n"))))
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;; Lisp forms
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(ert-deftest esh-cmd-test/quoted-lisp-form ()
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"Test parsing of a quoted Lisp form."
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(eshell-command-result-equal "echo #'(1 2)" '(1 2)))
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(ert-deftest esh-cmd-test/backquoted-lisp-form ()
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"Test parsing of a backquoted Lisp form."
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(let ((eshell-test-value 42))
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(eshell-command-result-equal "echo `(answer ,eshell-test-value)"
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'(answer 42))))
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(ert-deftest esh-cmd-test/backquoted-lisp-form/splice ()
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"Test parsing of a backquoted Lisp form using splicing."
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(let ((eshell-test-value '(2 3)))
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(eshell-command-result-equal "echo `(1 ,@eshell-test-value)"
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'(1 2 3))))
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;; Logical operators
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(ert-deftest esh-cmd-test/and-operator ()
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"Test logical && operator."
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(skip-unless (executable-find "["))
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(with-temp-eshell
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(eshell-match-command-output "[ foo = foo ] && echo hi"
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"hi\n")
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(eshell-match-command-output "[ foo = bar ] && echo hi"
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"\\`\\'")))
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(ert-deftest esh-cmd-test/or-operator ()
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"Test logical || operator."
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(skip-unless (executable-find "["))
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(with-temp-eshell
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(eshell-match-command-output "[ foo = foo ] || echo hi"
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"\\`\\'")
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(eshell-match-command-output "[ foo = bar ] || echo hi"
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"hi\n")))
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;; Pipelines
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(ert-deftest esh-cmd-test/pipeline-wait/head-proc ()
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"Check that piping a non-process to a process command waits for the process."
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(skip-unless (executable-find "cat"))
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(with-temp-eshell
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(eshell-match-command-output "echo hi | *cat"
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"hi")))
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(ert-deftest esh-cmd-test/pipeline-wait/tail-proc ()
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"Check that piping a process to a non-process command waits for the process."
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(skip-unless (executable-find "echo"))
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(with-temp-eshell
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(eshell-match-command-output "*echo hi | echo bye"
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"bye\nhi\n")))
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(ert-deftest esh-cmd-test/pipeline-wait/multi-proc ()
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"Check that a pipeline waits for all its processes before returning."
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(skip-unless (and (executable-find "echo")
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(executable-find "sh")
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(executable-find "rev")))
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(with-temp-eshell
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(eshell-match-command-output
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"*echo hello | sh -c 'sleep 1; rev' 1>&2 | *echo goodbye"
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"goodbye\nolleh\n")))
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(ert-deftest esh-cmd-test/pipeline-wait/subcommand ()
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"Check that piping with an asynchronous subcommand waits for the subcommand."
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(skip-unless (and (executable-find "echo")
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(executable-find "cat")))
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(with-temp-eshell
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(eshell-match-command-output "echo ${*echo hi} | *cat"
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"hi")))
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(ert-deftest esh-cmd-test/pipeline-wait/subcommand-with-pipe ()
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"Check that piping with an asynchronous subcommand with its own pipe works.
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This should also wait for the subcommand."
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(skip-unless (and (executable-find "echo")
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(executable-find "cat")))
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(with-temp-eshell
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(eshell-match-command-output "echo ${*echo hi | *cat} | *cat"
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"hi")))
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(ert-deftest esh-cmd-test/reset-in-pipeline/subcommand ()
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"Check that subcommands reset `eshell-in-pipeline-p'."
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(skip-unless (executable-find "cat"))
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(dolist (template '("echo {%s} | *cat"
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"echo ${%s} | *cat"
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"*cat $<%s> | *cat"))
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(eshell-command-result-equal
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(format template "echo $eshell-in-pipeline-p")
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nil)
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(eshell-command-result-equal
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(format template "echo | echo $eshell-in-pipeline-p")
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"last")
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(eshell-command-result-equal
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(format template "echo $eshell-in-pipeline-p | echo")
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"first")
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(eshell-command-result-equal
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(format template "echo | echo $eshell-in-pipeline-p | echo")
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"t")))
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(ert-deftest esh-cmd-test/reset-in-pipeline/lisp ()
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"Check that interpolated Lisp forms reset `eshell-in-pipeline-p'."
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(skip-unless (executable-find "cat"))
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(dolist (template '("echo (%s) | *cat"
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"echo $(%s) | *cat"))
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(eshell-command-result-equal
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(format template "format \"%s\" eshell-in-pipeline-p")
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"nil")))
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;; Control flow statements
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(ert-deftest esh-cmd-test/for-loop ()
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"Test invocation of a for loop."
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(with-temp-eshell
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(eshell-match-command-output "for i in 5 { echo $i }"
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"5\n")))
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(ert-deftest esh-cmd-test/for-loop-list ()
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"Test invocation of a for loop iterating over a list."
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(with-temp-eshell
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(eshell-match-command-output "for i in (list 1 2 (list 3 4)) { echo $i }"
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"1\n2\n(3 4)\n")))
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(ert-deftest esh-cmd-test/for-loop-multiple-args ()
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"Test invocation of a for loop iterating over multiple arguments."
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(with-temp-eshell
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(eshell-match-command-output "for i in 1 2 (list 3 4) { echo $i }"
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"1\n2\n3\n4\n")))
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(ert-deftest esh-cmd-test/for-loop-name () ; bug#15231
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"Test invocation of a for loop using `name'."
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(let ((process-environment (cons "name" process-environment)))
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(eshell-command-result-equal "for name in 3 { echo $name }"
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3)))
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(ert-deftest esh-cmd-test/for-loop-name-shadow () ; bug#15372
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"Test invocation of a for loop using an env-var."
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(let ((process-environment (cons "name=env-value" process-environment)))
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(with-temp-eshell
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(eshell-match-command-output
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"echo $name; for name in 3 { echo $name }; echo $name"
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"env-value\n3\nenv-value\n"))))
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(ert-deftest esh-cmd-test/for-loop-for-items-shadow ()
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"Test that the variable `for-items' isn't shadowed inside for loops."
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(with-temp-eshell
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(with-no-warnings (setq-local for-items "hello"))
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(eshell-match-command-output "for i in 1 { echo $for-items }"
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"hello\n")))
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(ert-deftest esh-cmd-test/for-loop-pipe ()
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"Test invocation of a for loop piped to another command."
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(skip-unless (executable-find "rev"))
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(with-temp-eshell
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(eshell-match-command-output "for i in foo bar baz { echo $i } | rev"
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"zabraboof")))
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(ert-deftest esh-cmd-test/while-loop ()
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"Test invocation of a while loop."
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(with-temp-eshell
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(let ((eshell-test-value '(0 1 2)))
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(eshell-match-command-output
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(concat "while $eshell-test-value "
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"{ (pop eshell-test-value) }")
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"0\n1\n2\n"))))
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(ert-deftest esh-cmd-test/while-loop-lisp-form ()
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"Test invocation of a while loop using a Lisp form."
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(with-temp-eshell
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(let ((eshell-test-value 0))
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(eshell-match-command-output
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(concat "while (/= eshell-test-value 3) "
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"{ setq eshell-test-value (1+ eshell-test-value) }")
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"1\n2\n3\n"))))
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(ert-deftest esh-cmd-test/while-loop-ext-cmd ()
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"Test invocation of a while loop using an external command."
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(skip-unless (executable-find "["))
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(with-temp-eshell
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(let ((eshell-test-value 0))
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(eshell-match-command-output
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(concat "while {[ $eshell-test-value -ne 3 ]} "
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"{ setq eshell-test-value (1+ eshell-test-value) }")
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"1\n2\n3\n"))))
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(ert-deftest esh-cmd-test/while-loop-pipe ()
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"Test invocation of a while loop piped to another command."
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(skip-unless (executable-find "rev"))
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(with-temp-eshell
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(let ((eshell-test-value '("foo" "bar" "baz")))
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(eshell-match-command-output
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(concat "while $eshell-test-value "
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"{ (pop eshell-test-value) }"
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" | rev")
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"zabraboof"))))
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(ert-deftest esh-cmd-test/until-loop ()
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"Test invocation of an until loop."
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(with-temp-eshell
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(let ((eshell-test-value nil))
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(eshell-match-command-output
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(concat "until $eshell-test-value "
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"{ setq eshell-test-value t }")
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"t\n"))))
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(ert-deftest esh-cmd-test/until-loop-lisp-form ()
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"Test invocation of an until loop using a Lisp form."
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(skip-unless (executable-find "["))
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(with-temp-eshell
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(let ((eshell-test-value 0))
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(eshell-match-command-output
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(concat "until (= eshell-test-value 3) "
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"{ setq eshell-test-value (1+ eshell-test-value) }")
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"1\n2\n3\n"))))
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(ert-deftest esh-cmd-test/until-loop-ext-cmd ()
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"Test invocation of an until loop using an external command."
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(skip-unless (executable-find "["))
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(with-temp-eshell
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(let ((eshell-test-value 0))
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(eshell-match-command-output
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(concat "until {[ $eshell-test-value -eq 3 ]} "
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"{ setq eshell-test-value (1+ eshell-test-value) }")
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"1\n2\n3\n"))))
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(ert-deftest esh-cmd-test/if-statement ()
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"Test invocation of an if statement."
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(let ((eshell-test-value t))
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(eshell-command-result-equal "if $eshell-test-value {echo yes}"
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"yes"))
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(let ((eshell-test-value nil))
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(eshell-command-result-equal "if $eshell-test-value {echo yes}"
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nil)))
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(ert-deftest esh-cmd-test/if-else-statement ()
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"Test invocation of an if/else statement."
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(let ((eshell-test-value t))
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(eshell-command-result-equal "if $eshell-test-value {echo yes} {echo no}"
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"yes"))
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(let ((eshell-test-value nil))
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(eshell-command-result-equal "if $eshell-test-value {echo yes} {echo no}"
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"no")))
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(ert-deftest esh-cmd-test/if-else-statement-lisp-form ()
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"Test invocation of an if/else statement using a Lisp form."
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(eshell-command-result-equal "if (zerop 0) {echo yes} {echo no}"
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"yes")
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(eshell-command-result-equal "if (zerop 1) {echo yes} {echo no}"
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"no")
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(let ((debug-on-error nil))
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(eshell-command-result-equal "if (zerop \"foo\") {echo yes} {echo no}"
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"no")))
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(ert-deftest esh-cmd-test/if-else-statement-lisp-form-2 ()
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"Test invocation of an if/else statement using a Lisp form.
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This tests when `eshell-lisp-form-nil-is-failure' is nil."
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(let ((eshell-lisp-form-nil-is-failure nil))
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(eshell-command-result-equal "if (zerop 0) {echo yes} {echo no}"
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"yes")
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(eshell-command-result-equal "if (zerop 1) {echo yes} {echo no}"
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"yes")
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(let ((debug-on-error nil))
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(eshell-command-result-equal "if (zerop \"foo\") {echo yes} {echo no}"
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"no"))))
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(ert-deftest esh-cmd-test/if-else-statement-ext-cmd ()
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"Test invocation of an if/else statement using an external command."
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(skip-unless (executable-find "["))
|
||
(eshell-command-result-equal "if {[ foo = foo ]} {echo yes} {echo no}"
|
||
"yes")
|
||
(eshell-command-result-equal "if {[ foo = bar ]} {echo yes} {echo no}"
|
||
"no"))
|
||
|
||
(ert-deftest esh-cmd-test/if-statement-pipe ()
|
||
"Test invocation of an if statement piped to another command."
|
||
(skip-unless (executable-find "rev"))
|
||
(with-temp-eshell
|
||
(let ((eshell-test-value t))
|
||
(eshell-match-command-output "if $eshell-test-value {echo yes} | rev"
|
||
"\\`sey\n?"))
|
||
(let ((eshell-test-value nil))
|
||
(eshell-match-command-output "if $eshell-test-value {echo yes} | rev"
|
||
"\\`\n?"))))
|
||
|
||
(ert-deftest esh-cmd-test/if-else-statement-pipe ()
|
||
"Test invocation of an if/else statement piped to another command."
|
||
(skip-unless (executable-find "rev"))
|
||
(with-temp-eshell
|
||
(let ((eshell-test-value t))
|
||
(eshell-match-command-output
|
||
"if $eshell-test-value {echo yes} {echo no} | rev"
|
||
"\\`sey\n?"))
|
||
(let ((eshell-test-value nil))
|
||
(eshell-match-command-output
|
||
"if $eshell-test-value {echo yes} {echo no} | rev"
|
||
"\\`on\n?"))))
|
||
|
||
(ert-deftest esh-cmd-test/unless-statement ()
|
||
"Test invocation of an unless statement."
|
||
(let ((eshell-test-value t))
|
||
(eshell-command-result-equal "unless $eshell-test-value {echo no}"
|
||
nil))
|
||
(let ((eshell-test-value nil))
|
||
(eshell-command-result-equal "unless $eshell-test-value {echo no}"
|
||
"no")))
|
||
|
||
(ert-deftest esh-cmd-test/unless-else-statement ()
|
||
"Test invocation of an unless/else statement."
|
||
(let ((eshell-test-value t))
|
||
(eshell-command-result-equal
|
||
"unless $eshell-test-value {echo no} {echo yes}"
|
||
"yes"))
|
||
(let ((eshell-test-value nil))
|
||
(eshell-command-result-equal
|
||
"unless $eshell-test-value {echo no} {echo yes}"
|
||
"no")))
|
||
|
||
(ert-deftest esh-cmd-test/unless-else-statement-lisp-form ()
|
||
"Test invocation of an unless/else statement using a Lisp form."
|
||
(eshell-command-result-equal "unless (zerop 0) {echo no} {echo yes}"
|
||
"yes")
|
||
(eshell-command-result-equal "unless (zerop 1) {echo no} {echo yes}"
|
||
"no")
|
||
(let ((debug-on-error nil))
|
||
(eshell-command-result-equal "unless (zerop \"foo\") {echo no} {echo yes}"
|
||
"no")))
|
||
|
||
(ert-deftest esh-cmd-test/unless-else-statement-ext-cmd ()
|
||
"Test invocation of an unless/else statement using an external command."
|
||
(skip-unless (executable-find "["))
|
||
(eshell-command-result-equal "unless {[ foo = foo ]} {echo no} {echo yes}"
|
||
"yes")
|
||
(eshell-command-result-equal "unless {[ foo = bar ]} {echo no} {echo yes}"
|
||
"no"))
|
||
|
||
|
||
;; Error handling
|
||
|
||
(ert-deftest esh-cmd-test/throw ()
|
||
"Test that calling `throw' as an Eshell command unwinds everything properly."
|
||
(with-temp-eshell
|
||
(should (= (catch 'tag
|
||
(eshell-insert-command
|
||
"echo hi; (throw 'tag 42); echo bye"))
|
||
42))
|
||
(should (eshell-match-output "\\`hi\n\\'"))
|
||
(should-not eshell-foreground-command)
|
||
;; Make sure we can call another command after throwing.
|
||
(eshell-match-command-output "echo again" "\\`again\n")))
|
||
|
||
;; esh-cmd-tests.el ends here
|